// Copyright 2025 The XLS Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import fixed_point;

fn main() -> u32 {
    // For a 4-bit fixed-point value with binary exponent 0, the number of
    // integer bits that can vary is 4.
    fixed_point::num_nonzero_integer_bits(u32:4, s32:0)
}

#[test]
fn test_integer_bits() { assert_eq(main(), u32:4); }
